Q&A: What is the reason behind laminating the core in electrical machines?
Monday, June 21st, 2010 at
10:48 am
Question by kerry: What is the reason behind laminating the core in electrical machines?
What is the reason behind laminating the core in electrical machines?
Best answer:
Answer by lokpal007
the core is laminated so that the currents from coil does not enter the core.
the core is to contain magnetic flux only and not electric current if it would contain electric current it would distort the magnetic flux and hence would distort the current and flux linkages in the other coil.
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Tagged with: behind • core • electrical • Laminating • machines • reason
Filed under: Pouch Laminator
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laminating the core creates an intensified magnetic field by reducing losses to “eddy” currents in the core. The laminated core is also cheaper to manufacture as the laminate layers can be stamped out of sheet iron and assembled at a much lower cost than casting a solid core.
The lamination is insulation to reduce eddy currents in the core. The eddy currents can cause heating and huge losses. Otherwise you could be making an induction furnace instead of a transformer, motor, or generator.
Yes to reduce eddy current losses, but as an aside to that, the ‘hum’ caused by large transformers is caused by the laminations vibrating in the magnetic field.
JUST THOUGHT YOU MIGHT LIKE TO KNOW